W3DG6418V-D1 Datasheet, PDF (1/7 Pages) White Electronic Designs Corporation – 128MB - 16Mx64 SDRAM UNBUFFERED

White Electronic Designs
W3DG6418V-D1
-JD1
PRELIMINARY*
128MB - 16Mx64 SDRAM UNBUFFERED
FEATURES
PC100 and PC133 compatible
Burst Mode Operation
Auto and Self Refresh capability
LVTTL compatible inputs and outputs
Serial Presence Detect with EEPROM
Fully synchronous: All signals are registered on the
positive edge of the system clock
Programmable Burst Lengths: 1, 2, 4, 8 or Full Page
3.3V ± 0.3V Power Supply
144 pin SO-DIMM JEDEC
DESCRIPTION
The W3DG6418V is a 16Mx64 synchronous DRAM module
which consists of eight 16Mx8 SDRAM components
in TSOP II package, and one 2Kb EEPROM in an 8
pin TSSOP package for Serial Presence Detect which
are mounted on a 144 pin SO-DIMM multilayer FR4
Substrate.
* This product is under development, is not qualified or characterized and is subject to
change without notice.
PIN CONFIGURATIONS (FRONT SIDE/BACK SIDE)
PINOUT
PIN FRONT PIN BACK PIN FRONT PIN BACK PIN BACK PIN
1
VSS
2
VSS 49 DQ13 50 DQ45 97 DQ22 98
3 DQ0 4 DQ32 51 DQ14 52 DQ46 99 DQ23 100
5
DQ1
6 DQ33 53 DQ15 54 DQ47 101
VCC
102
7
DQ2
8 DQ34 55
VSS
56
VSS 103
A6
104
9
DQ3 10 DQ35 57
NC
58 NC 105
A8
106
11
VCC
12
VCC
59
NC
60
NC 107
VSS
108
13 DQ4 14 DQ36 61 CK0 62 CKE0 109
A9
110
15 DQ5 16 DQ37 63 VCC 64 VCC 111 A10/AP 112
17 DQ6 18 DQ38 65 RAS# 66 CAS# 113 VCC 114
19 DQ7 20 DQ39 67 WE# 68 NC 115 DQM2 116
21
VSS
22
VSS
69
23 DQM0 24 DQM4 71
25 DQM1 26 DQM5 73
CS0# 70
NC 72
NC 74
NC 117 DQM3 118
NC 119
VSS
120
CK1 121 DQ24 122
27
VCC
28
VCC
75
VSS
76
VSS 123 DQ25 124
29
A0
30
A3
77
NC
78 NC 125 DQ26 126
31
A1
32
A4
79
NC
80 NC 127 DQ27 128
33
A2
34
A5
81
VCC
82
VCC 129
VCC
130
35
VSS
36
VSS
83 DQ16 84 DQ48 131 DQ28 132
37 DQ8 38 DQ40 85 DQ17 86 DQ49 133 DQ29 134
39 DQ9 40 DQ41 87 DQ18 88 DQ50 135 DQ30 136
41 DQ10 42 DQ42 89 DQ19 90 DQ51 137 DQ31 138
43 DQ11 44 DQ43 91
VSS
92
VSS 139
VSS
140
45 VCC 46 VCC 93 DQ20 94 DQ52 141 **SDA 142
47 DQ12 48 DQ44 95 DQ21 96 DQ53 143 VCC 144
BACK
DQ54
DQ55
VCC
A7
BA0
VSS
BA1
A11
VCC
DQM6
DQM7
VSS
DQ56
DQ57
DQ58
DQ59
VCC
DQ60
DQ61
DQ62
DQ63
VSS
SCL
VCC
PIN NAMES
A0 – A11 Address Input (Multiplexed)
BA0-1
Select Bank
DQ0-63
Data Input/Output
CK0, CK1 Clock Input
CKE0
Clock Enable Input
CS0#
Chip Select Input
RAS#
Row Address Strobe
CAS#
Column Address Strobe
WE#
Write Enable
DQM0-7 DQM
VCC
Power Supply (3.3V)
VSS
Ground
SDA
Serial Data I/O
SCL
Serial Clock
DNU
Do Not Use
NC
No Connect
** These pins should be NC in the system which
does not support SPD.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
October 2004
Rev. 1
1
White Electronic Designs Corporation • [phone] • www.wedc.com